For Part A:
1)
y = x + 1
m = 1, b = 1
y = 1/4x + 4
m = 1/4, b = 4
Solution: (4, 5)
2)
y = 2x + 4
m = 2, b = 4
y = - 1/3x - 3
m = - 1/3, b = - 3
Solution: (- 3, - 2)
**Graphs of both are provided in order.
For Part B:
1)
Solution: (4, - 6)
2)
Solution: (3, 4)